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Finding the Fourth Proportional to 361,838.52, 499,272.60 and 218,502.60

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Solution

The fourth proportional to 361,838.52, 499,272.60 and 218,502.60 is: 301,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,838.52 : 499,272.60 = 218,502.60 : x
  2. Step 2: Convert to fraction form
    361,838.52/499,272.60 = 218,502.60/x
  3. Step 3: Cross multiply
    361,838.52x = 499,272.60 × 218,502.60
  4. Step 4: Simplify right side
    361,838.52x = 109,092,361,208.76
  5. Step 5: Solve for x
    x = 109,092,361,208.76/361,838.52
  6. Step 6: Final answer
    x = 301,494.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.